Use CC0 as the license for rst2html.
Use CC0 as the license for rst2html.

This should clarify the kerfuffle merged in #177 and is in spirit of
what I intended when I wrote the file in 2008. See the CC0 FAQ for more
details: http://creativecommons.org/about/cc0

I used the git log to mention the people who contributed to the file
since then.

Fixes #205.

thekindofme/markup,jeremiahyan/markup,HelgeKrueger/markup,sancolo/markup,mortegac/markup,moreati/markup,gpabdo/markup,DuyBach/markup,jack-michaud/markup,ya7lelkom/markup,silviolleite/markup,bwaidelich/markup,SergeyPodgornyy/markup,jaqe18/markup,silvestrelosada/markup,jbanety/markup,jack-michaud/markup,AshikNesin/markup,pchaigno/markup,moreati/markup,webdevl/markup,mortegac/markup,supriyantomaftuh/markup,sancolo/markup,pchaigno/markup,GamerKnight/markup,Filebb/markup,marengaz/markup,RunYouCleverBoy/markup,titiushko/markup,amitai-hoze/markup,titiushko/markup,rgarro/markup,sebadiaz/markup,liquorburn/markup,nilehmann/markup,silvestrelosada/markup,wadya/markup,Rathachai/markup,wadya/markup,martynbm/markup1,sebadiaz/markup,jeffersonphp/markup,HelgeKrueger/markup,JussMee15/markup,thekindofme/markup,titiushko/markup,silviolleite/markup,essamjoubori/markup,patidarr/markup,liquorburn/markup,github/markup,jeremiahyan/markup,peeka15/markup,nilehmann/markup,sancolo/markup,sorrycc/markup,asiniy/markup,SergeyPodgornyy/markup,HelgeKrueger/markup,marengaz/markup,wadya/markup,supriyantomaftuh/markup,bwaidelich/markup,essamjoubori/markup,github/markup,jacobxk/markup,rgarro/markup,amitai-hoze/markup,achristodoulou/markup,betatim/markup,sweet-t-nd/markup,webdevl/markup,nilehmann/markup,sebadiaz/markup,SergeyPodgornyy/markup,sweet-t-nd/markup,silvestrelosada/markup,RunYouCleverBoy/markup,Rathachai/markup,hernanramirez/markup,Filebb/markup,DuyBach/markup,vheun/markup,jack-michaud/markup,pchaigno/markup,hernanramirez/markup,achristodoulou/markup,briandoconnor/markup,asiniy/markup,ya7lelkom/markup,jeremiahyan/markup,dherre3/markup,jayhetee/markup,GamerKnight/markup,pwz3n0/markup,bwaidelich/markup,supriyantomaftuh/markup,RunYouCleverBoy/markup,JoshDellay/markup,kblizeck/markup,patidarr/markup,Rathachai/markup,essamjoubori/markup,gpabdo/markup,github/markup,sonico999/markup,amitai-hoze/markup,github/markup,briandoconnor/markup,rgarro/markup,JoshDellay/markup,briandoconnor/markup,jeffersonphp/markup,sorrycc/markup,kblizeck/markup,sonico999/markup,kblizeck/markup,martynbm/markup1,jacobxk/markup,webdevl/markup,pchaigno/markup,jacobxk/markup,jaqe18/markup,DuyBach/markup,jbanety/markup,sonico999/markup,patidarr/markup,hernanramirez/markup,betatim/markup,GamerKnight/markup,marengaz/markup,AshikNesin/markup,AshikNesin/markup,jbanety/markup,thekindofme/markup,achristodoulou/markup,jaqe18/markup,jayhetee/markup,peeka15/markup,mortegac/markup,HsuTing/markup,asiniy/markup,gpabdo/markup,pwz3n0/markup,JussMee15/markup,vheun/markup,furkanayhan/markup,silviolleite/markup,Filebb/markup,luthfi401/markup,HsuTing/markup,moreati/markup,pwz3n0/markup,peeka15/markup,liquorburn/markup,dherre3/markup,luthfi401/markup,vheun/markup,whatvn/markup,furkanayhan/markup,ya7lelkom/markup,whatvn/markup,sweet-t-nd/markup,JoshDellay/markup,sorrycc/markup,betatim/markup,luthfi401/markup,jeffersonphp/markup,jayhetee/markup,whatvn/markup,JussMee15/markup,furkanayhan/markup,HsuTing/markup,martynbm/markup1,dherre3/markup